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GMC · Known Issues

2023 GMC Yukon XL Problems: 3 Known Issues

2023 model year · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated September 2026

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Issue summary

According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2023 GMC Yukon XL has 3 documented known issues. None of the listed issues is rated critical; this is not a complete reliability assessment. Across all issues with published estimates, repair costs range from $50 to $3,000. DIY maintenance guides at au7o.io.

In This Article

  • Yukon XL Transmission1
  • Yukon XL Drivetrain1
  • Yukon XL Body/Panels1
  • Recalls18
  • FAQ
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In This Article

  • Transmission1
  • Drivetrain1
  • Body/Panels1
  • Recalls18
  • FAQ

All 3 Known Issues

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On the 2015-2024 GMC Yukon XL, the 8-speed (8L90) and 10-speed (10L80) automatic transmissions in the Yukon XL develop a torque converter clutch (TCC) shudder felt as a vibration or shake at light throttle between 25-50 mph. The shudder mimics driving over rumble strips. GM issued multiple TSBs (18-NA-355, 19-NA-193) and eventually reformulated the transmission fluid specification. The root cause is the TCC friction material interaction with the original Dexron HP fluid formulation.

This issue also affects: Buick Encore GX, Buick Envision, Buick Regal

Common Symptoms

  • Vibration or shudder at 25-50 mph under light throttle
  • Feels like driving over rumble strips
  • Shudder disappears under heavy acceleration
  • Vibration most noticeable in overdrive gears
  • Intermittent — may come and go

How to Fix

First-line fix: complete transmission fluid flush and fill with GM-approved Mobil 1 Synthetic LV ATF HP (Blue Label) — NOT the original red-label Dexron HP. This updated fluid resolves the shudder in approximately 80% of cases. If shudder returns within 30,000 miles of the fluid change, the torque converter requires replacement. Do NOT use aftermarket friction modifiers or additives — they void the GM powertrain warranty and can damage the transmission.

Typical repair cost:$150 - $3,000

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On the 2015-2024 GMC Yukon XL, four-wheel-drive Yukon XL models with the NP263 (NQH) and NP246 transfer cases develop fluid leaks from the front and rear output shaft seals. The leak typically starts as a slow weep and progresses to a steady drip, leaving ATF spots on the driveway. If left unaddressed, the transfer case runs low on fluid, causing internal damage to the chain, sprockets, and bearings. The rear output seal is the most common failure point.

This issue also affects: Chevrolet Express, Chevrolet Silverado 1500, Chevrolet Suburban

Common Symptoms

  • ATF dripping from transfer case area
  • Transfer case fluid low at service intervals
  • Grinding or whining noise from transfer case
  • Difficulty engaging 4WD
  • Service 4WD message on dashboard

How to Fix

Replace the leaking output shaft seal(s). The rear seal can be replaced with the transfer case in the vehicle by removing the rear driveshaft and prying out the old seal. The front seal requires more disassembly. Use only genuine ACDelco seals (ACDelco 24232325) as aftermarket seals have a higher failure rate on this application. Refill with Dexron VI ATF to the proper level. Inspect the output shaft for scoring — a scored shaft will destroy the new seal quickly.

Typical repair cost:$200 - $600

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On the 2015-2024 GMC Yukon XL, the Yukon XL rear liftgate gas struts lose their charge and fail to hold the heavy liftgate open, typically between 3-5 years regardless of mileage. The oversized liftgate of the XL model is significantly heavier than the standard Yukon, putting more stress on the struts. A failing strut allows the liftgate to slowly drop or slam closed, posing a head injury risk. In cold weather, weak struts fail more noticeably due to gas contraction.

This issue also affects: Chevrolet Traverse

Common Symptoms

  • Liftgate does not stay open fully
  • Liftgate slowly drops after opening
  • Liftgate slams closed unexpectedly
  • More noticeable in cold weather
  • Hissing sound from strut (gas leak)

How to Fix

Replace both liftgate support struts as a pair (never replace just one). Strongarm 6262 or Sachs SG330090 are popular OE-equivalent replacements. The replacement takes about 15 minutes with a trim removal tool to pop the ball socket clips. Ensure the new struts are rated for the correct force (the XL requires higher-force struts than the standard Yukon). Power liftgate models should have the motor assembly inspected simultaneously.

Typical repair cost:$50 - $200

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NHTSA Recalls18 recalls

EXTERIOR LIGHTING:LIGHTING CONTROL MODULE:SOFTWARE

General Motors, LLC (GM) is recalling certain 2020-2023 Cadillac CT4 and CT5; 2021-2023 Buick Envision; and 2022-2023 Cadillac Escalade and Escalade ESV, Chevrolet Silverado 1500, Suburban, Tahoe, GMC Sierra 1500, Yukon, and Yukon XL vehicles. The daytime running lights (DRLs) may not deactivate when the headlights are on. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 108, "Lamps, Reflective Devices, and Associated Equipment."

Campaign #22V90300008/12/2022

SUSPENSION:REAR

General Motors, LLC (GM) is recalling certain 2023 Cadillac Escalade, Escalade ESV, Chevrolet Suburban, Chevrolet Tahoe, GMC Yukon, and Yukon XL vehicles. The rear suspension outer control arm bolts may not have been properly heat-treated, which can cause the bolts to break.

Campaign #23V64200020/09/2023

SERVICE BRAKES, HYDRAULIC:BRAKE FLUID LOW WARNING: LAMP

General Motors, LLC (GM) is recalling certain 2023 Chevrolet Silverado 1500, GMC Sierra 1500, 2023-2024 Chevrolet Tahoe, Suburban, GMC Yukon, Yukon XL, Cadillac Escalade, and Escalade ESV vehicles. The electronic brake control module software may fail to display a warning light when a loss of brake fluid occurs. As such, these vehicles fail to comply with the requirements of Federal Vehicle Safety Standard number 135, "Light Vehicle Brake Systems."

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Other GMC Models

GMC Sierra 150035GMC Terrain26GMC Sierra 3500HD24GMC Acadia22GMC Yukon21GMC Canyon18

Frequently Asked Questions

What are the most common GMC Yukon XL problems?

According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2023 GMC Yukon XL has 3 documented issues. The most frequently reported are: Transmission Torque Converter Shudder (8L90/10L80), Transfer Case Fluid Leak from Output Shaft Seal, Rear Liftgate Support Strut Failure. None are rated critical, but regular maintenance is recommended.

Is the GMC Yukon XL reliable?

The 2023 GMC Yukon XL has 3 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. None of the matching records is rated critical; this is not a complete reliability assessment. Regular maintenance following the manufacturer's schedule helps prevent many common problems.

How much does it cost to fix common GMC Yukon XL problems?

Repair costs for known GMC Yukon XL issues range from $50 to $3,000, depending on the specific problem and whether you choose DIY or professional repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

What is the 2015-2024 GMC Yukon XL Transmission Torque Converter Shudder (8L90/10L80)?

The 8-speed (8L90) and 10-speed (10L80) automatic transmissions in the Yukon XL develop a torque converter clutch (TCC) shudder felt as a vibration or shake at light throttle between 25-50 mph. The shudder mimics driving over rumble strips. GM issued multiple TSBs (18-NA-355, 19-… Repairs typically run $150-$3,000. Severity: medium.

What is the 2015-2024 GMC Yukon XL Transfer Case Fluid Leak from Output Shaft Seal?

Four-wheel-drive Yukon XL models with the NP263 (NQH) and NP246 transfer cases develop fluid leaks from the front and rear output shaft seals. The leak typically starts as a slow weep and progresses to a steady drip, leaving ATF spots on the driveway. If left unaddressed, the tra… Repairs typically run $200-$600. Severity: medium.

What is the 2015-2024 GMC Yukon XL Rear Liftgate Support Strut Failure?

Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.

Data compiled from NHTSA recalls, manufacturer TSBs, automotive forums, and AI-assisted research. No aggregated owner-report counts available for this vehicle yet.

Campaign #24V67400012/09/2024

ENGINE AND ENGINE COOLING:ENGINE:HARD PARTS INTERNAL/MECHANICAL

General Motors LLC (GM) is recalling certain 2021-2024 Cadillac Escalade and Escalade ESV, Chevrolet Silverado 1500, Suburban, and Tahoe, GMC Sierra 1500, Yukon, and Yukon XL vehicles equipped with a 6.2L V8 gas engine. The connecting rod and/or crankshaft engine components may have manufacturing defects that can lead to engine damage and engine failure.

Campaign #25V27400024/04/2025

STEERING:STEERING CONTROL MODULE

General Motors, LLC (GM) is recalling certain 2021 Cadillac Escalade, Escalade ESV, Chevrolet Suburban, Chevrolet Tahoe, GMC Yukon, and Yukon XL vehicles. A software issue may cause a loss of power steering assist at startup or while driving.

Campaign #21V45500017/06/2021

+ 13 more recalls. Check all on NHTSA.gov

Enter your VIN at NHTSA.gov to check recalls specific to your vehicle.

The Yukon XL rear liftgate gas struts lose their charge and fail to hold the heavy liftgate open, typically between 3-5 years regardless of mileage. The oversized liftgate of the XL model is significantly heavier than the standard Yukon, putting more stress on the struts. A faili… Repairs typically run $50-$200. Severity: low.